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1.
Hepatology ; 2024 Feb 20.
Artículo en Inglés | MEDLINE | ID: mdl-38385945

RESUMEN

BACKGROUND AND AIMS: Metabolic dysfunction-associated steatotic liver disease (MASLD) encompasses a broad and continuous spectrum of liver diseases ranging from fatty liver to steatohepatitis. The intricate interactions of genetic, epigenetic, and environmental factors in the development and progression of MASLD remain elusive. Here, we aimed to achieve an integrative understanding of the genomic and transcriptomic alterations throughout the progression of MASLD. APPROACH AND RESULTS: RNA-Seq profiling (n = 146) and whole-exome sequencing (n = 132) of MASLD liver tissue samples identified 3 transcriptomic subtypes (G1-G3) of MASLD, which were characterized by stepwise pathological and molecular progression of the disease. Macrophage-driven inflammatory activities were identified as a key feature for differentiating these subtypes. This subtype-discriminating macrophage interplay was significantly associated with both the expression and genetic variation of the dsDNA sensor IFI16 (rs6940, A>T, T779S), establishing it as a fundamental molecular factor in MASLD progression. The in vitro dsDNA-IFI16 binding experiments and structural modeling revealed that the IFI16 variant exhibited increased stability and stronger dsDNA binding affinity compared to the wild-type. Further downstream investigation suggested that the IFI16 variant exacerbated DNA sensing-mediated inflammatory signals through mitochondrial dysfunction-related signaling of the IFI16-PYCARD-CASP1 pathway. CONCLUSIONS: This study unveils a comprehensive understanding of MASLD progression through transcriptomic classification, highlighting the crucial roles of IFI16 variants. Targeting the IFI16-PYCARD-CASP1 pathway may pave the way for the development of novel diagnostics and therapeutics for MASLD.

2.
Clin Mol Hepatol ; 30(2): 247-262, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38281815

RESUMEN

BACKGROUND/AIMS: Metabolic dysfunction-associated steatotic liver disease (MASLD) is characterized by fat accumulation in the liver. MASLD encompasses both steatosis and MASH. Since MASH can lead to cirrhosis and liver cancer, steatosis and MASH must be distinguished during patient treatment. Here, we investigate the genomes, epigenomes, and transcriptomes of MASLD patients to identify signature gene set for more accurate tracking of MASLD progression. METHODS: Biopsy-tissue and blood samples from patients with 134 MASLD, comprising 60 steatosis and 74 MASH patients were performed omics analysis. SVM learning algorithm were used to calculate most predictive features. Linear regression was applied to find signature gene set that distinguish the stage of MASLD and to validate their application into independent cohort of MASLD. RESULTS: After performing WGS, WES, WGBS, and total RNA-seq on 134 biopsy samples from confirmed MASLD patients, we provided 1,955 MASLD-associated features, out of 3,176 somatic variant callings, 58 DMRs, and 1,393 DEGs that track MASLD progression. Then, we used a SVM learning algorithm to analyze the data and select the most predictive features. Using linear regression, we identified a signature gene set capable of differentiating the various stages of MASLD and verified it in different independent cohorts of MASLD and a liver cancer cohort. CONCLUSION: We identified a signature gene set (i.e., CAPG, HYAL3, WIPI1, TREM2, SPP1, and RNASE6) with strong potential as a panel of diagnostic genes of MASLD-associated disease.


Asunto(s)
Hígado Graso , Neoplasias Hepáticas , Humanos , Algoritmos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/genética , Progresión de la Enfermedad
3.
Gut Liver ; 18(2): 283-293, 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-37574956

RESUMEN

Background/Aims: Noninvasive methods have become increasingly critical in the diagnosis of fibrosis in chronic liver diseases. Herein, we compared the diagnostic performance of serum Mac2 binding protein glycosylation isomer (M2BPGi) and other serological panels for fibrosis in patients with nonalcoholic fatty liver disease (NAFLD) and proposed an improved two-step diagnostic algorithm for advanced fibrosis. Methods: We enrolled 231 patients diagnosed with NAFLD who underwent a liver biopsy. We subsequently evaluated the diagnostic performance of serological panels, including serum M2BPGi, a fibrosis index based on four factors (FIB-4), aspartate aminotransferase-to-platelet ratio index (APRI), and NAFLD fibrosis score (NFS), in predicting the stage of liver fibrosis. We then constructed a two-step algorithm to better differentiate advanced fibrosis. Results: The areas under the receiver operating characteristic curves of serum M2BPGi, FIB-4, APRI, and NFS for advanced fibrosis (≥F3) were 0.823, 0.858, 0.779, and 0.827, respectively. To reduce the performance of unnecessary liver biopsy, we propose a two-step algorithm using FIB-4 as an initial diagnostic tool and serum M2BPGi (≥0.6) as an additional diagnostic method for patients classified as intermediate (23%). Using the proposed algorithm, the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value were 0.812, 0.814, 0.814, 0.600, and 0.927, respectively. Conclusions: Serum M2BPGi is a simple and effective test for advanced fibrosis in patients with NAFLD. Application of the two-step algorithm based on FIB-4 and M2BPGi proposed here can improve diagnostic performance and reduce unnecessary tests, making diagnosis easily accessible, especially in primary medical centers.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Humanos , Glicosilación , Cirrosis Hepática/patología , Pruebas de Función Hepática , Valor Predictivo de las Pruebas , Curva ROC , Biopsia , Aspartato Aminotransferasas , Biomarcadores , Hígado/patología
4.
Front Med (Lausanne) ; 10: 1290266, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38089863

RESUMEN

Introduction: Although most patients with alcohol-related liver disease (ALD) have a history of prolonged and heavy drinking, there is no clear threshold defining the level of alcohol consumption that leads to ALD. We aimed to evaluate the correlation between average alcohol consumption and the risk of liver disease and to determine the threshold for clinically significant alcohol consumption. Materials and methods: Using the Korean National Health Insurance database, we identified participants who underwent a health-screening program in 2010 and 2011 and retrospectively analyzed their data until 2019. To diagnose and categorize the extracted participants, we used the International Classification of Diseases version 10 and Fatty Liver Index. The primary outcome was to determine the incidence of newly diagnosed liver-related diseases during the observation period and compare the incidence of liver-related diseases among non-drinkers and drinkers based on the amount of alcohol consumption. Results: A total of 53,006 patients were enrolled and followed-up for a median of 8.4 years, during which 1,509 cases of liver-related diseases occurred. The participants were divided into five groups: no alcohol consumption (n = 31,359), 1st quartile (n = 5,242), 2nd quartile (n = 5,704), 3rd quartile (n = 5,337), and 4th quartile (n = 5,364). The corresponding number of glasses of alcohol consumed per week for each quantile (Q1, Q2, Q3, and Q4) was labeled 2.5 ± 1.1 standard units (1 standard unit = 8 g alcohol), 5.4 ± 1.9 standard units, 11.5 ± 3.3 standard units, and 27.9 ± 18.2 standard units, respectively. Compared with non-drinkers, the risk of liver-related disease was found to be higher in Q1 drinkers (adjusted hazard ratio [aHR], 1.09; 95% CI, 0.90-1.33), Q2 drinkers (aHR, 1. 10; 95% CI, 0.91-1.32), Q3 drinkers (aHR, 1.33; 95% CI, 1.11-1.59), and Q4 drinkers (aHR, 1.47; 95% CI, 1.24-1.75). Conclusion: We report that our study has shown that drinking more than 11.5 ± 3.3 standard units/week (92 ± 26.4 g/week) significantly increases the risk of developing liver-related diseases. Therefore, as a preventive measure to reduce the risk of developing liver disease, alcohol consumption should be limited beyond traditionally recommended levels.

5.
Int J Mol Sci ; 24(16)2023 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-37629045

RESUMEN

Hepatic iron overload (HIO) is a hallmark of nonalcoholic fatty liver disease (NAFLD) with a poor prognosis. Recently, the role of hepatic erythrophagocytosis in NAFLD is emerging as a cause of HIO. We undertook various assays using human NAFLD patient pathology samples and an in vivo nonalcoholic steatohepatitis (NASH) mouse model named STAMTM. To make the in vitro conditions comparable to those of the in vivo NASH model, red blood cells (RBCs) and platelets were suspended and subjected to metabolic and inflammatory stresses. An insert-coculture system, in which activated THP-1 cells and RBCs are separated from HepG2 cells by a porous membrane, was also employed. Through various analyses in this study, the effect of cilostazol was examined. The NAFLD activity score, including steatosis, ballooning degeneration, inflammation, and fibrosis, was increased in STAMTM mice. Importantly, hemolysis occurred in the serum of STAMTM mice. Although cilostazol did not improve lipid or glucose profiles, it ameliorated hepatic steatosis and inflammation in STAMTM mice. Platelets (PLTs) played an important role in increasing erythrophagocytosis in the NASH liver. Upregulated erythrophagocytosis drives cells into ferroptosis, resulting in liver cell death. Cilostazol inhibited the augmentation of PLT and RBC accumulation. Cilostazol prevented the PLT-induced increase in ectopic erythrophagocytosis in in vivo and in vitro NASH models. Cilostazol attenuated ferroptosis of hepatocytes and phagocytosis of RBCs by THP-1 cells. Augmentation of hepatic erythrophagocytosis by activated platelets in NASH exacerbates HIO. Cilostazol prevents ectopic erythrophagocytosis, mitigating HIO-mediated ferroptosis in NASH models.


Asunto(s)
Ferroptosis , Enfermedad del Hígado Graso no Alcohólico , Humanos , Animales , Ratones , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Cilostazol/farmacología , Inflamación
6.
Korean J Gastroenterol ; 82(1): 35-39, 2023 07 25.
Artículo en Inglés | MEDLINE | ID: mdl-37489081

RESUMEN

The results of the IMbrave150 study have led to widespread use of the combination therapy of atezolizumab and bevacizumab as a first-line treatment for unresectable or metastatic hepatocellular carcinoma (HCC). Compared to traditional cytotoxic chemotherapy agents, immune checkpoint inhibitors show a spectrum of side effects ranging from mild side effects such as skin rash to potentially severe systemic effects such as myocarditis. We present a case of transverse myelitis diagnosed during the treatment of HCC with atezolizumab and bevacizumab combination therapy.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Mielitis Transversa , Humanos , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/tratamiento farmacológico , Bevacizumab/efectos adversos , Mielitis Transversa/diagnóstico , Mielitis Transversa/etiología , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/tratamiento farmacológico
7.
Drug Des Devel Ther ; 16: 3263-3274, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36177347

RESUMEN

Purpose: Tenofovir disoproxil (TD), modified from tenofovir disoproxil fumarate (TDF), was developed as a salt-free formulation, removing fumarate to improve the ease of oral intake by reducing the tablet's size. We evaluated the maintenance of antiviral effects and overall safety profile of TD 245 mg after switching from TDF 300 mg in patients with chronic hepatitis B (CHB). Patients and Methods: CHB patients with HBV-DNA <69 IU/mL after ≥24 weeks of TDF therapy were enrolled. The primary efficacy endpoint was the HBV-DNA suppression rate (HBV-DNA <69 IU/mL) at week 48; We evaluated the non-inferiority (10% margin) of TD to TDF in terms of efficacy. Safety was assessed based on adverse events (AEs), laboratory tests, bone mineral density, and renal function abnormalities. Results: Overall, 189 subjects were randomized in a 2:1 ratio, and 117 and 66 subjects in the TD and TDF groups, respectively, completed the study. In the per-protocol set, the HBV-DNA suppression rate at week 48 was 99.1% and 100% in the TD and TDF groups, respectively. The lower limit of the 97.5% one-sided confidence interval for the intergroup difference in HBV-DNA suppression rate was -2.8%, which was greater than the prespecified margin of non-inferiority. The changes in creatinine clearance from baseline to week 48 was significantly less in the TD group and in the TDF group; -0.8 ± 9.8 versus -2.4 ± 12.8 mL/min, respectively (P=0.017). Conclusion: TD was non-inferior to TDF for maintaining viral suppression in CHB patients, showing the less decline of renal function.


Asunto(s)
Hepatitis B Crónica , Adenina/efectos adversos , Antivirales/efectos adversos , Creatinina , ADN Viral , Fumaratos/uso terapéutico , Antígenos e de la Hepatitis B , Virus de la Hepatitis B , Hepatitis B Crónica/tratamiento farmacológico , Humanos , Comprimidos/uso terapéutico , Tenofovir/efectos adversos , Resultado del Tratamiento , Carga Viral
8.
J Liver Cancer ; 22(1): 57-62, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37383533

RESUMEN

Currently, various tyrosine kinase inhibitors and immune checkpoint inhibitors have been suggested in the treatment guidelines for advanced hepatocellular carcinoma (HCC). However, sorafenib was the only systemic drug approved 10 years ago. In 2010, a woman diagnosed with HCC rupture and multiple lung metastases visited our hospital. At the time of visiting our hospital, she had undergone transarterial chemoembolization at another hospital to control bleeding due to HCC rupture. We treated her with hepatic arterial infusion chemotherapy and sorafenib combination therapy to increase the control of intrahepatic tumors in consideration of the modest efficacy of sorafenib. The intrahepatic tumor was almost controlled. Metastasectomy was performed to control lung oligometastasis. Subsequently, additional muscle metastasis was confirmed, and metastasectomy was performed. Although this is a very rare case, it shows that a multidisciplinary approach can improve the prognosis of patients with HCC.

9.
J Korean Med Sci ; 36(21): e142, 2021 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-34060258

RESUMEN

BACKGROUND: The advancement of treatment with direct-acting antiviral (DAA) agents has improved the cure rate of hepatitis C virus (HCV) infection close to 100%. The aim of our study was to assess the real-world effectiveness and safety of DAA regimens for the treatment of patients with chronic HCV genotype 2. METHODS: We retrospectively analyzed the clinical data of patients treated with sofosbuvir plus ribavirin (SOF + RBV) or glecaprevir/pibrentasvir (G/P) for chronic HCV genotype 2 infection at seven university hospitals in the Korean southeast region. RESULTS: SOF + RBV therapy produced an 89% and 98.3% sustained virologic response 12 week (SVR12) after treatment completion in the full analysis set and per-protocol set, respectively, and the corresponding values for G/P therapy were 89.5% and 99.2%, respectively. The difference between the treatments was probably because 6.2% (59/953) of patients in the SOF + RBV group did not complete the treatment and 9.8% (14/143) in the G/P group did not test HCV RNA after treatment completion. Adverse events (A/Es) were reported in 59.7% (569/953) and 25.9% (37/143) of the SOF + RBV and G/P groups, respectively. In the SOF + RBV group, 12 (1.26%) patients discontinued treatment owing to A/Es, whereas no patients discontinued treatment because of A/Es in the G/P group. CONCLUSION: In both treatment groups, SVR was high when treatment was completed. However, there was a high dropout rate in the SOF + RBV group, and the dropout analysis showed that these were patients with liver cirrhosis (LC; 43/285, 15.1%), especially those with decompensated LC (12/32, 37.5%). Therefore, an early initiation of antiviral therapy is recommended for a successful outcome before liver function declines. Furthermore, patients with decompensated LC who are considered candidates for SOF + RBV treatment should be carefully monitored to ensure that their treatment is completed, especially those with low hemoglobin and high alanine transaminase.


Asunto(s)
Cirrosis Hepática/tratamiento farmacológico , Ribavirina/uso terapéutico , Sofosbuvir/uso terapéutico , Adulto , Anciano , Antivirales/uso terapéutico , Bencimidazoles , Combinación de Medicamentos , Femenino , Genotipo , Hepacivirus/clasificación , Hepacivirus/genética , Hepacivirus/aislamiento & purificación , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/virología , Humanos , Cirrosis Hepática/virología , Masculino , Persona de Mediana Edad , Pirrolidinas , Quinoxalinas , República de Corea , Estudios Retrospectivos , Ribavirina/efectos adversos , Sofosbuvir/efectos adversos , Sulfonamidas , Respuesta Virológica Sostenida , Resultado del Tratamiento
10.
FASEB J ; 34(9): 12354-12366, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32721044

RESUMEN

Although previous studies have shown that the administration of fibroblast growth factor 21 (FGF21) reverses hepatic steatosis, the mechanism by which FGF21 exerts a therapeutic effect on nonalcoholic fatty liver disease (NAFLD) is not yet entirely understood. We previously demonstrated that hepatic six transmembrane protein of prostate 2 (STAMP2) may represent a suitable target for NAFLD. We investigated the mechanism underlying the therapeutic effect of recombinant FGF21 on NAFLD, focusing on the involvement of hepatic STAMP2. In this study, we used human nonalcoholic steatosis patient pathology samples, C57BL/6 mice for a high-fat diet (HFD)-induced in vivo NAFLD model, and used human primary hepatocytes and HepG2 cells for oleic acid (OA)-induced in vitro NAFLD model. We observed that recombinant FGF21 treatment ameliorated hepatic steatosis and insulin resistance through the upregulation of STAMP2 expression. We further observed hepatic iron overload (HIO) and reduced iron exporter, ferroportin expression in the liver samples obtained from human NAFLD patients, and HFD-induced NAFLD mice and in OA-treated HepG2 cells. Importantly, recombinant FGF21 improved HIO through the hepatic STAMP2-mediated upregulation of ferroportin expression. Our data suggest that hepatic STAMP2 may represent a suitable therapeutic intervention target for FGF21-induced improvement of NAFLD accompanying HIO.


Asunto(s)
Factores de Crecimiento de Fibroblastos/uso terapéutico , Sobrecarga de Hierro/tratamiento farmacológico , Hígado/metabolismo , Proteínas de la Membrana/fisiología , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Oxidorreductasas/fisiología , Proteínas Quinasas Activadas por AMP/fisiología , Animales , Proteínas de Transporte de Catión/metabolismo , Células Cultivadas , Células Hep G2 , Humanos , Resistencia a la Insulina , Metabolismo de los Lípidos , Masculino , Ratones , Ratones Endogámicos C57BL , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Proteínas Recombinantes/uso terapéutico
12.
Gut ; 69(12): 2214-2222, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32209606

RESUMEN

OBJECTIVE: Direct comparison of the clinical outcomes between nucleos(t)ide analogue (NA) discontinuation versus NA continuation has not been performed in patients with chronic hepatitis B who achieved HBsAg-seroclearance. Whether NA discontinuation was as safe as NA continuation after NA-induced surface antigen of HBV (HBsAg) seroclearance was investigated in the present study. DESIGNS: This multicentre study included 276 patients from 16 hospitals in Korea who achieved NA-induced HBsAg seroclearance: 131 (47.5%) discontinued NA treatment within 6 months after HBsAg seroclearance (NA discontinuation group) and 145 (52.5%) continued NA treatment (NA continuation group). Primary endpoint was HBsAg reversion and secondary endpoints included serum HBV DNA redetection and development of hepatocellular carcinoma (HCC). RESULTS: During follow-up (median=26.9 months, IQR=12.2-49.2 months), 10 patients (3.6%) experienced HBsAg reversion, 6 (2.2%) showed HBV DNA redetection and 8 (2.9%) developed HCC. Compared with NA continuation, NA discontinuation was not associated with HBsAg reversion in both univariable (HR=0.45, 95% CI=0.12 to 1.76, log-rank p=0.24) and multivariable analyses (adjusted HR=0.65, 95% CI=0.16 to 2.59, p=0.54). The cumulative probabilities of HBsAg reversion at 1, 3 and 5 years were 0.8%, 2.3% and 5.0% in the NA discontinuation group, and 1.5%, 6.3% and 8.4% in the NA continuation group, respectively. NA discontinuation was not associated with higher risk of either HBV redetection (HR=0.83, 95% CI=0.16 to 4.16, log-rank p=0.82) or HCC development (HR=0.53, 95% CI=0.12 to 2.23, log-rank p=0.38). CONCLUSION: The discontinuation of NA was not associated with a higher risk of either HBsAg reversion, serum HBV DNA redetection or HCC development compared with NA continuation among patients who achieved HBsAg seroclearance with NA.


Asunto(s)
Antivirales/administración & dosificación , Antígenos de Superficie de la Hepatitis B/sangre , Hepatitis B Crónica/tratamiento farmacológico , Respuesta Virológica Sostenida , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/prevención & control , Carcinoma Hepatocelular/virología , ADN Viral/sangre , Femenino , Estudios de Seguimiento , Guanina/administración & dosificación , Guanina/análogos & derivados , Virus de la Hepatitis B/genética , Humanos , Lamivudine/administración & dosificación , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/prevención & control , Neoplasias Hepáticas/virología , Masculino , Persona de Mediana Edad , Tenofovir/administración & dosificación
13.
Radiat Oncol J ; 37(3): 207-214, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31591869

RESUMEN

PURPOSE: To identify the prognostic factors that could influence survival and to compare prognoses of the patients with the number of the risk factors that might assist in the adequate management of hepatocellular carcinoma (HCC) patients with bone metastases that showed a heterogeneous range of survival. MATERIALS AND METHODS: A total of 41 patients, treated with radiotherapy (RT) for bone metastases from HCC from 2014 to 2017, were enrolled retrospectively. Survival was determined by the Kaplan-Meier method from the start of the RT for metastatic bone lesions. Pre-RT clinical features were evaluated and their influences on survival were analyzed. The significant factors were considered to compare survivals according to the number of prognostic factors. RESULTS: Median follow-up was 6.0 months (range, 0.5 to 47.0 months). The median overall survival was 6.5 months, and the 1-year and 2-year survival rates were 35.5% and 13.5%, respectively. Multivariate analysis revealed that the Child-Pugh class A group, alpha-fetoprotein increased more than 30 ng/mL, and HCC size of more than 5 cm were associated with worse overall survival. The median survivals in HCC with none, 1, 2, and 3 of the aforementioned risk factors were 19.5, 9.0, 2.5, and 1.0 months, respectively (p < 0.05). CONCLUSION: Our results show that the overall survivals were significantly different according to the number of the risk factors among HCC patients with bone metastases who showed various lengths of survival.

14.
Korean J Gastroenterol ; 73(6): 360-364, 2019 Jun 25.
Artículo en Coreano | MEDLINE | ID: mdl-31234627

RESUMEN

Albendazole is used as a typical antiparasitic agent worldwide. The side effects of albendazole may include nausea, vomiting, abdominal pain, dizziness, headache, alopecia, and increased liver enzymes. Mild elevation of the liver enzyme has been reported in more than 10% of cases, but drug induced liver injury was reported to be very rare. A 30-year-old woman visited the Dong-A University Hospital with anorexia, nausea, jaundice, and elevated liver enzyme. For diagnosis, other acute hepatitis etiologies were excluded, but the prophylactic administration of albendazole was verified. This paper introduces a case of drug-induced liver injury through the prophylactic administration of albendazole. Physicians should be aware of severe liver injury as one of the side effects of albendazole.


Asunto(s)
Albendazol/efectos adversos , Antihelmínticos/efectos adversos , Enfermedad Hepática Inducida por Sustancias y Drogas/diagnóstico , Adulto , Alanina Transaminasa/sangre , Albendazol/uso terapéutico , Antihelmínticos/uso terapéutico , Aspartato Aminotransferasas/sangre , Enfermedad Hepática Inducida por Sustancias y Drogas/etiología , Femenino , Humanos , Ultrasonografía
15.
Korean J Gastroenterol ; 73(4): 230-234, 2019 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-31030461

RESUMEN

Anaerobic infections have been reported to be responsible for 3-10% of pyogenic liver abscesses in Korea, and reported anaerobes include Fusobacterium, Bacillus fragilis, and Bacteroides melaninogenicus. Parvimonas micra is an anaerobic, Gram-positive, non-spore-forming bacterial species and a constituent of normal flora on skin, vagina, gastrointestinal tract, and oral cavity that can cause opportunistic infections. However, it has only rarely been reported to be a cause of liver abscess; only one such case has been reported in Korea. We experienced a case of concomitant liver and brain abscesses caused by Parvimonas micra in a non-immunodeficient 65-year-old female patient without diabetes or periodontal disease. Parvimonas micra infection was confirmed by blood culture using VITEK® 2 cards and by bacterial 16s ribosomal RNA gene sequencing. We conclude that we should not overlook anaerobes as a cause of liver abscess.


Asunto(s)
Absceso Encefálico/diagnóstico , Firmicutes/aislamiento & purificación , Absceso Piógeno Hepático/diagnóstico , Abdomen/diagnóstico por imagen , Anciano , Absceso Encefálico/microbiología , Femenino , Firmicutes/genética , Humanos , Absceso Piógeno Hepático/microbiología , Imagen por Resonancia Magnética , ARN Ribosómico 16S/química , ARN Ribosómico 16S/metabolismo , Análisis de Secuencia de ADN , Tomografía Computarizada por Rayos X
16.
World J Gastroenterol ; 25(5): 608-621, 2019 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-30774275

RESUMEN

BACKGROUND: Intrahepatic sarcomatoid chonalgiocarcinoma (s-CCC) is an extremely rare disease, accounting for less than 1% of hepatobiliary system malignancies, and its pathophysiology is not well known. On the hypothesis that its clinical, serologic, or radiologic diagnosis are not fully understood and its prognosis is poor, we investigated the distinguishing features of s-CCC compared with those of intrahepatic bile duct adenocarcinoma [cholangiocellular carcinoma (CCC)] in patients from a single center. AIM: To analyze the clinical, serologic, imaging, and histopathologic characteristics of intrahepatic s-CCC patients diagnosed in a single center. METHODS: The clinical, serologic, imaging, and histopathologic features of 227 patients diagnosed with intrahepatic cholangiocarcinoma (IHCC) in a single medical center during the last 17 years were analyzed. The characteristics of 11 patients with s-CCC were compared with those of 216 patients with CCC. RESULTS: The number of patients with s-CCC who presented fever and abdominal pain and past history of chronic viral hepatitis or liver cirrhosis (LC) was higher than that of patients with CCC. In imaging studies, patients with s-CCC showed relatively aggressive features. However, no clear distinction was observed between s-CCC and CCC based on other clinical, serologic or radiologic examination results. An accurate diagnosis could be made only via a histopathologic examination through immunohistochemical staining. The clinical course of s-CCC was generally aggressive, and patients had a relatively poor prognosis. CONCLUSION: In patients with s-CCC, early diagnosis through biopsy and aggressive treatment, including surgical resection, are important.


Asunto(s)
Neoplasias de los Conductos Biliares/patología , Conductos Biliares Intrahepáticos/patología , Colangiocarcinoma/patología , Enfermedades Raras/patología , Sarcoma/patología , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de los Conductos Biliares/diagnóstico , Neoplasias de los Conductos Biliares/mortalidad , Neoplasias de los Conductos Biliares/terapia , Conductos Biliares Intrahepáticos/diagnóstico por imagen , Conductos Biliares Intrahepáticos/cirugía , Biomarcadores de Tumor/sangre , Biopsia , Quimioterapia Adyuvante/métodos , Colangiocarcinoma/diagnóstico , Colangiocarcinoma/mortalidad , Colangiocarcinoma/terapia , Femenino , Estudios de Seguimiento , Hepatectomía , Humanos , Estimación de Kaplan-Meier , Pruebas de Función Hepática , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Pronóstico , Enfermedades Raras/diagnóstico , Enfermedades Raras/mortalidad , Enfermedades Raras/terapia , República de Corea/epidemiología , Estudios Retrospectivos , Sarcoma/diagnóstico , Sarcoma/mortalidad , Sarcoma/terapia , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Ultrasonografía
17.
Korean J Gastroenterol ; 71(2): 94-97, 2018 02 25.
Artículo en Inglés | MEDLINE | ID: mdl-29471607

RESUMEN

There are currently over 5,000-known species of mushrooms worldwide. Only 20-25% of mushrooms have been named, and 3% of these are poisonous. More than 95% of mushroom poisoning cases occur due to difficulties associated with the identification of mushroom species. Most of the fatal mushroom poisoning cases recorded to date have been related to the Amanita species. Until now, a case of fatal poisoning caused by Macrolepiota neomastoidea (M. neomastoidea) has not been reported in Asia. A 57-year-old male patient was admitted to the emergency room with nausea, vomiting, diarrhea, and abdominal pain. He reported ingesting wild mushrooms with his mother and sister about 2 days ago. His mother and sister were treated with only supportive care, but he was admitted to the intensive care unit and underwent liver transplantation due to acute liver failure. We are reporting a case of fatal M. neomastoidea intoxication from wild mushrooms, a rare case of mushroom poisoning.


Asunto(s)
Fallo Hepático Agudo/diagnóstico , Intoxicación por Setas/complicaciones , Amanita/patogenicidad , Humanos , Unidades de Cuidados Intensivos , Hígado/patología , Fallo Hepático Agudo/etiología , Fallo Hepático Agudo/terapia , Trasplante de Hígado , Masculino , Persona de Mediana Edad , Intoxicación por Setas/diagnóstico
18.
World J Gastroenterol ; 23(32): 5977-5985, 2017 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-28932090

RESUMEN

AIM: To evaluate the efficacy and safety of HL tablet extracted from magnolia officinalis for treating patients with nonalcoholic fatty liver disease (NAFLD). METHODS: Seventy-four patients with NAFLD diagnosed by ultrasonography were randomly assigned to 3 groups given high dose (400 mg) HL tablet, low dose (133.4 mg) HL tablet and placebo, respectively, daily for 12 wk. The primary endpoint was post-treatment change of hepatic fat content (HFC) measured by magnetic resonance spectroscopy. Secondary endpoints included changes of serum aspartate aminotransferase, alanine aminotransferase (ALT), cholesterol, triglyceride, free fatty acid, homeostasis model assessment-estimated insulin resistance, and body mass index (BMI). RESULTS: The mean HFC of the high dose HL group, but not of the low dose group, declined significantly after 12 wk of treatment (high dose vs placebo, P = 0.033; low dose vs placebo, P = 0.386). The mean changes of HFC from baseline at week 12 were -1.7% ± 3.1% in the high dose group (P = 0.018), -1.21% ± 4.97% in the low dose group (P = 0.254) and 0.61% ± 3.87% in the placebo group (relative changes compared to baseline, high dose were: -12.1% ± 23.5%, low dose: -3.2% ± 32.0%, and placebo: 7.6% ± 44.0%). Serum ALT levels also tended to decrease in the groups receiving HL tablet while other factors were unaffected. There were no moderate or severe treatment-related safety issues during the study. CONCLUSION: HL tablet is effective in reducing HFC without any negative lipid profiles, BMI changes and adverse effects.


Asunto(s)
Hígado/efectos de los fármacos , Magnolia/química , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Extractos Vegetales/uso terapéutico , Adulto , Índice de Masa Corporal , Femenino , Humanos , Lípidos/sangre , Hígado/diagnóstico por imagen , Hígado/patología , Pruebas de Función Hepática , Espectroscopía de Resonancia Magnética , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/sangre , Enfermedad del Hígado Graso no Alcohólico/diagnóstico por imagen , Enfermedad del Hígado Graso no Alcohólico/patología , Placebos , Extractos Vegetales/farmacología , Comprimidos , Resultado del Tratamiento , Ultrasonografía
19.
Korean J Gastroenterol ; 67(6): 337-340, 2016 Jun 25.
Artículo en Inglés | MEDLINE | ID: mdl-27312836

RESUMEN

Sorafenib is currently the only targeted therapy available for advanced stage hepatocellular carcinoma (HCC). Cutaneous adverse events associated with sorafenib treatment include hand-foot skin reaction, but there has been no report of drug reaction (or rash) with eosinophilia and systemic symptoms (DRESS) syndrome. Here, we report a case of 72-year-old man with HCC and alcoholic liver cirrhosis who developed skin eruptions, fever, eosinophilia, and deteriorated hepatic and renal function under sorafenib treatment. He has since successfully recovered with conservative care.

20.
Ann Surg Treat Res ; 90(3): 147-56, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26942158

RESUMEN

PURPOSE: This retrospective study was an investigation of overall survival (OS), disease-free survival (DFS) and prognostic factors affecting OS and DFS in cirrhotic patients who received intraoperative radiofrequency ablation (IORFA). METHODS: Between April 2009 and November 2013, 112 patients (94 men, 84%; 18 women, 16%) underwent IORFA for 185 cases of hepatocellular carcinomas (HCC). Repeat IORFA was done in 9 patients during the same period (total of 121 treatments). RESULTS: All patients were followed-up for at least 12 months (mean follow-up, 32 months). Surgical resection combined with IORFA was performed in 20 patients. The technical effectiveness at 1 week was 91.78% (111 of 121). Readmission was 9.1% (11 of 121) and the most common cause was ventral hernia. Procedure-related mortality was 2.7% (3 of 112) and continued fatal biliary leakage was 1.8% (2 of 112). Local recurrence developed in 10 patients (8.9%). Most recurrence was intrahepatic. Cumulative survival was assessed in 33 patients who received IORFA as primary treatment (naive patients) and 79 non-naive patients. The cumulative DFS and OS rate at l and 3 years was 54% and 24%, and 87% and 66%, respectively. Moderate ascites (P = 0.001), tumor located segment I (P = 0.001), portal vein thrombosis (P = 0.001) had poor survival were significant factors by multivariate analysis. CONCLUSION: IORFA alone or in combination with surgical resection extends the spectrum of liver surgery. A fundamental understanding of RFA, additional comorbidities, and postablation complication are necessary to maximize the safety and efficacy of IORFA for treating HCC with cirrhosis.

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